Spark-intensifier



R. L. PROESCH.

SPARK INTENSIFIER'.

APPLICATION FILED FEB. 9, 1920.

1 ,37 1 1 1 4;, Patented Mar. 8, 1921.

Z2505 L. 3065c;

' ATTORN EY WITNESS:

RALPH LEONARD PROESCH, OF BEAVER DAM, WISCONSIN.

SPABK-INTENSIFIER.

To all whom it may com-em Be it known that I, RALPH L. PROESCH, acitizen of the United States, residing at Beaver Dam, in the county ofDodge and State of Wisconsin, have invented new and useful Improvementsin Spark-Intensifiers, of which the following is a specification.

The object of my present invention is to provide a spark intensifierthat is at once simple and durable in construction and effective inoperation. 1

To the attainment of the foregoing, the invention consists in theimprovement as hereinafter described and definitely claimed.

In the accompanying drawings, hereby made a part hereof:

Figure 1 is a plan view of my novel spark intensifier; the same beingshown in proper relation to the main electrode of a spark plug.

Fig. 2 is a transverse section taken in the plane indicated by the line2-2 of Fig. 1.

Fig. 3 is a plan view of the body of the intensifier.

Similar numerals of reference designate corresponding parts in all ofthe views ofthe drawings.

Among other elements my novel intensifier comprises a body 1, aperturedat points adjacent to its opposite ends, as indicated by 2 and 3. Thesaid body 1 may be of any material compatible with the purpose of myinvention, without involving departure from the scopeof same as claimed,though I prefor to form it of black-wood fiber or other fiber, becauseof the lightness, inexpensiveness and'insulating capacity of suchmaterial. Extending through the aperture 2 of the body 1, is a headedscrew 4, and mounted on said screw 4: at the opposite side of the body1, with reference to the screw head, is a nut 5 adapted for theelectrical connection of a-wire 6 that is designed to lead from thesource of electrical energy. Straddling the nut 5 and soldered orotherwise connected thereto is a metallic loop 7, the arms of which arearranged in spaced and approximately parallel relation and are carriedto points adjacent to the a erture 3 through which the main electro e 8of a spark plug extends, after the manner shown ,m" Fig. 1. The majorportions of the arms Specification of Letters Patent.

of the loop 7 are preferably coated with enamel or other suitableinsulating mate r1al, as indicated by 9. The end portions gf sizd armsare, however, bare, as indicated In the practical use of my novelintensifier, it will be readily understood that the current from thesource of energy will pass to the nut 5, and from said nut will passthrough, the arms of the loop 7 and will ump across the gap between theterminals of sand arms and the main electrode 8, with the result thatthe spark formed between the said main electrode and the groundelectrode of a ipark plug will be materially intensified. rom this itfollows' that my improvement will render it easy to start an internalcombustion engine in cold weather, and will assure ignition even whenspark plugs are dirty or covered with oil. It will also be understoodthat the improved intensifier is calculated to prolong the usefulness ofthe spark plug with which it is associated.

I prefer to designate my improvement as a spark intensifier andadjuster, inasmuch as by turning the nut 5 to a slight extent, thedistances between the terminals of the arms of the loop and theelectrode-receiving aperture 3 may be varied as conditions re uire.

aving described my invention, 'what I claim and desire to secure byLetters-Patent, is:

1. A spark intensifier comprising a body having apertures adjacent toits ends, a headed screw extending through one of said apertures, a nutthreaded on the screw at the opposite side of the body with reference tothe screw head, and a metallic loop straddling and secured to andmovable with the nut and having the terminals of its arms arrangedadjacent to though spaced from the other aperture and also having theinner portions of its arms coated with insulating material.

2. A spark intensifier comprising a body, a metalllc loop having theterminals of its arms separated, and means revoluble about its axis,carrying and connecting the bight portion of the metallic loop and thebody and adapted for the connection of a con- 7 Patented Mar. 8, 1921.Application filed February 9, 1920. Serial No. 357,199.

ductor leading from a source of electrical to the screw head and. ametallic loop stradenergy. dling and secured to and movable with the 3.A spark intensifier comprising a body nut and having the terminals ofits arms 10 having apertures adjacent to its ends, a arranged adjacenttothough spaced from 5 heade screw extending through one of said the otheraperture.

apertures, a nut threaded on the screw at In testimony whereof I aflixmy signature. the opposite side of the body with reference RALPH LEONARDPROESCH.

